Higurashi When They Cry: Time Killing Arc, Vol. 1 - manga (Higurashi, 7)

When the minister of construction minister's grandson disappears amid protests against the dam project in Hinamizawa, detective Akasaka is sent from the Tokyo Police to investigate. Posing as a tourist, Akasaka becomes fast friends with Rika Furude, and the little girl almost makes him forget that he's on a mission to find a kidnapper! But the sightseeing tour takes a sudden turn when Rika delivers a grave warning: Leave Hinamizawa...before you come to regret it...